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31.
Sophia A. Ghanimeh Pascal E. Saikaly Dong Li Mutasem El-Fadel 《Waste management (New York, N.Y.)》2013,33(11):2211-2218
Two thermophilic digesters were inoculated with manure and started-up under mixed and stagnant conditions. The Archaea in the mixed digester (A) were dominated by hydrogenotrophic Methanobateriaceae (61%) with most of the methane being produced via syntrophic pathways. Methanosarcinales (35%) were the only acetoclastic methanogens present. Acetate dissipation seems to depend on balanced hydrogenotrophic-to-acetotrophic abundance, which in turn was statistically correlated to free ammonia levels. Relative abundance of bacterial community was associated with the loading rate. However, in the absence of mixing (digester B), the relationship between microbial composition and operating parameters was not discernible. This was attributed to the development of microenvironments where environmental conditions are significantly different from average measured parameters. The impact of microenvironments was accentuated by the use of a non-acclimated seed that lacks adequate propionate degraders. Failure to disperse the accumulated propionate, and other organics, created high concentration niches where competitive and inhibiting conditions developed and favored undesired genera, such as Halobacteria (65% in B). As a result, digester B experienced higher acid levels and lower allowable loading rate. Mixing was found necessary to dissipate potential inhibitors, and improve stability and loading capacity, particularly when a non-acclimated seed, often lacking balanced thermophilic microflora, is used. 相似文献
32.
Beatrice Oneda Rosa Baldinger Regina Reissmann Irina Reshetnikova Pavel Krejci Rahim Masood Nicole Ochsenbein-Kölble Deborah Bartholdi Katharina Steindl Denise Morotti Marzia Faranda Alessandra Baumer Reza Asadollahi Pascal Joset Dunja Niedrist Christian Breymann Gundula Hebisch Margaret Hüsler René Mueller Elke Prentl Josef Wisser Roland Zimmermann Anita Rauch 《黑龙江环境通报》2014,34(6):525-533
33.
Florence Censier Christophe Y. Fischer Sandrine Chavalle Stephanie Heuskin Marie-Laure Fauconnier Bernard Bodson Michel De Proft Georges C. Lognay Pascal Laurent 《Chemoecology》2014,24(6):243-251
The saddle gall midge, Haplodiplosis marginata (von Roser) (Diptera: Cecidomyiidae), has undergone a resurgence recently as a pest of cereals in Belgium and other European countries. An effective monitoring tool of saddle gall midge flights is needed to understand the enigmatic population dynamics of this pest, and to design an integrated management strategy. Therefore, volatile compounds emitted by females (alkan-2-ols and alk-2-yl butanoates) were identified, and the chirality of the emitted esters was determined to be the R absolute configuration. In field-trapping experiments, racemic non-2-yl butanoate attracted substantial numbers of H. marginata males. Thus, this compound will be useful in baited traps for monitoring seasonal flight patterns, and improving integrated management of the saddle gall midge in agricultural systems. 相似文献
34.
Aurélien Palmyre Mélanie Eyries Marie-Victoire Senat Augustin Ozanne Stéphanie Staraci Philippe Dufour Thierry Chinet Pascal Lacombe Florent Soubrier Philippe Charron 《黑龙江环境通报》2017,37(12):1261-1264
RASA1-related disease is a rare autosomal dominant disease characterized by capillary malformations, arteriovenous malformations (AVMs), and/or arteriovenous fistulas (AFVs). Penetrance is nearly complete and vascular malformations may cause serious complications such as organ injury due to oxygenation disorder, brain abscess, hemorrhage, and stroke. Early diagnosis is useful in order to discuss optimal management, including AVMs/AVFs embolization or surgical procedures, and try to prevent some of the complications. In this context, molecular testing of RASA1 gene mutation in relatives may help to better manage the family. All arteriovenous malformations are however not accessible to such procedures. In addition, these therapeutic procedures may result in potential side effects and complications. A couple was referred to our genetics unit and asked us for prenatal genetic testing about a RASA1 mutation. Here, we discuss about arguments that led our team to accept prenatal testing. To the best of our knowledge, no molecular prenatal diagnosis was reported until now in RASA1-related diseases. This first report of prenatal diagnosis in RASA1-related diseases may also offer perspectives for a more general discussion in the field of inherited arteriovenous malformations. 相似文献
35.
Nicolas Gruchy Eleonore Blondeel Nathalie Le Meur Géraldine Joly-Hélas Pascal Chambon Marianne Till Martine Herbaux Adeline Vigouroux-Castera Aurélie Coussement James Lespinasse Florence Amblard Mélanie Jimenez Pocquet Camille Lebel-Roy Frédérique Carré-Pigeon Elisabeth Flori Francine Mugneret Sylvie Jaillard Catherine Yardin Radu Harbuz Marie-Agnès Collonge-Rame Philippe Vago Mylène Valduga Nathalie Leporrier François Vialard 《黑龙江环境通报》2016,36(6):523-529
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37.
Bonny Patrice Desdouits Marion Schaeffer Julien Garry Pascal Essia Ngang Jean Justin Le Guyader Françoise S. 《Food and environmental virology》2020,12(3):274-277
Food and Environmental Virology - Shellfish constitute an important protein source but may be contaminated by viruses from various origins. A study performed on clams collected in Cameroon showed a... 相似文献
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39.
Lindsay C. Stringer Andrew J. Dougill Jen C. Dyer Katharine Vincent Florian Fritzsche Julia Leventon Mario Paulo Falcão Pascal Manyakaidze Stephen Syampungani Philip Powell Gabriel Kalaba 《Regional Environmental Change》2014,14(2):713-725
Climate compatible development (CCD) has emerged as a new concept that bridges climate change adaptation, mitigation and community-based development. Progress towards CCD requires multi-stakeholder, multi-sector working and the development of partnerships between actors who may not otherwise have worked together. This creates challenges and opportunities that require careful examination at project and institutional levels and necessitates the sharing of experiences between different settings. In this paper, we draw on the outcomes from a multi-stakeholder workshop held in Mozambique in 2012, the final in a series of activities in a regional project assessing emerging CCD partnerships across southern Africa. The workshop involved policymakers, researchers and representatives from NGOs and the private sector. We employ a content analysis of workshop notes and presentations to identify the progress and challenges in moving four case study countries (the Democratic Republic of the Congo, Mozambique, Zambia and Zimbabwe) towards CCD pathways, by exploring experiences from both project and policy levels. To advance institutional support for the development of successful CCD policies, practices and partnerships, we conclude that there is a need for: (a) institutional development at the national level to strengthen coordination and more clearly define roles and responsibilities across sectors, based on the identification of capacity and knowledge gaps; (b) partnership development, drawing on key strengths and competences of different stakeholders and emphasising the roles of the private sector and traditional authorities; (c) learning and knowledge-sharing through national and regional fora; and (d) development of mechanisms that permit more equitable and transparent distribution of costs and benefits. These factors can facilitate development of multi-stakeholder, multi-level partnerships that are grounded in community engagement from the outset, helping to translate CCD policy statements into on-the-ground action. 相似文献
40.
Edith Guibert Bérénice Prieur Ronan Cariou Frédérique Courant Jean Philippe Antignac Bertrand Pain Jean Pierre Brillard Pascal Froment 《Environmental science and pollution research international》2013,20(5):2771-2783
In recent decades, many toxicological tests based on in vivo or in vitro models, mainly from mammalian (rat–mouse) and fish species, were used to assess the risks raised by contact or ingestion of molecules of pharmaceutical, agricultural, or natural origin. But no, or few, in vitro tests using other non-mammalian models such as bird have been explored despite their advantages: the embryonic gonads of birds have a high plasticity of development sensitive to estrogen, and sperm production is nearly two times faster than in rodents. Hence, we have established an in vitro culture of germ cells and somatic cells from chicken post-natal testis, and we have evaluated the sensitivity against the endocrine disruptor compound mono-(2-ethylhexyl) phthalate (MEHP) in comparison to previous studies using rodent and human models. After 96 h of exposure in presence of 10 μM MEHP, chicken seminiferous tubules cultures present a structural alteration, a reduction in cell proliferation and in germ cells population. Apoptosis of germ and somatic cells increases in presence of 1 μM MEHP. Furthermore, MEHP does not affect inhibin B and lactate production by Sertoli cells. These results are in accordance with previous studies using rat, mice, or human culture of testicular cells and in similar range of exposures or even better sensitivity for some “end-points” (biological parameters). In conclusion, the establishment of this postnatal testicular cells culture could be considered as an alternative method to in vivo experiments frequently used for evaluating the impact on the terrestrial wildlife species. This method could be also complementary to mammal model due to the limiting number of animals used and its elevated sensitivity. 相似文献